md-to-html

md-to-html is a skill for Claude Code, Codex from fabioc-aloha/Alex_Skill_Mall. It costs 19 tokens per session (1,900 once invoked), scanned A, original, MIT.

A converter that turns Markdown into a self-contained HTML web page, including embedded styling, images, and Mermaid diagrams. Markdown is plain text with simple formatting marks, while HTML is the format browsers display.

In plain words
What is it for?
Use it to create standalone documentation pages, previews, printable documents, and browser-openable attachments from Markdown.
Why use it?
It avoids requiring viewers to install a document tool or fetch separate assets, making the result suitable for offline sharing, printing, or email.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node .github/muscles/md-to-html.cjs report.md.

Good fit Use it to create standalone documentation pages, previews, printable documents, and browser-openable attachments from Markdown.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/fabioc-aloha/Alex_Skill_Mall
agentmods
npx agentmods add skills/fabioc-aloha/alex_skill_mall/md-to-html

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for md-to-html

README.md
[![agentmods](https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/md-to-html/github.svg)](https://agentmods.dev/skills/fabioc-aloha/alex_skill_mall/md-to-html)
Your own site
<a href="https://agentmods.dev/skills/fabioc-aloha/alex_skill_mall/md-to-html"><img src="https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/md-to-html/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for md-to-html

Your own site · 80×15
<a href="https://agentmods.dev/skills/fabioc-aloha/alex_skill_mall/md-to-html"><img src="https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/md-to-html.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,900 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00019 $0.01900
Opus 5 $0.00010 $0.00950
Sonnet 5 $0.00004 $0.00380
Haiku 4.5 $0.00002 $0.00190

Measured 8d ago against content hash 5484be1b5c20, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

md-to-html scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/converters/md-to-html/skills/md-to-html/SKILL.md · 221 lines

How it starts

The opening of the file, as written. The whole thing — 221 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Markdown to HTML Conversion

Write in Markdown, share as a polished web page — zero dependencies for viewers

Staleness Watch: Recheck external API and tool URLs before release or after upstream changes.

Convert Markdown documents into self-contained HTML files with embedded CSS, base64 images, and Mermaid diagram rendering. Ready for quick-share distribution, offline viewing, print, or email attachment.


When to Use

  • Sharing formatted documents without requiring Word or PDF viewers
  • Creating self-contained HTML pages for offline distribution
  • Generating printable web pages from Markdown sources
  • Quick previews of documentation with professional styling
  • Email attachments that open in any browser
  • Static site generation from Markdown sources

Supported Formatting

Format Status Notes
Headings H1-H6 with styled colors
Bold/Italic Standard emphasis
Links Styled with underline on hover
Images Base64 embedded or linked
Code blocks Syntax highlighting, monospace font
Inline code Background highlight
Tables Striped rows, header styling
Blockquotes Left border, italic style
Lists Ordered, unordered, nested
Task lists Checkbox rendering
Mermaid diagrams PNG or table fallback
SVG Inline or base64 embedded
Horizontal rules Styled dividers
Footnotes Via pandoc
Math (KaTeX) ⚠️ Requires --katex flag

Key Features

Feature Details
Style presets professional, academic, minimal, dark
Self-contained All CSS embedded in <style> block, no external deps
Image embedding Local images converted to base64 data URIs
Mermaid support PNG rendering or table fallback for diagrams
Print-ready CSS @media print rules included
TOC generation Optional table of contents via --toc
Frontmatter Extracted for title, stripped from output

Read the full file on GitHub · 221 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 221 lines · 19 tokens per session scan A 5484be1b5c20

Subscribe to this mod's changes

md-to-html is a skill published in the GitHub repository fabioc-aloha/Alex_Skill_Mall (4 stars, last pushed yesterday), licensed MIT. It adds 19 tokens to every session and 1,900 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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